NEW: HP 15C Collectors Edition

[carey]

(09-20-2023 06:49 PM)Maximilian Hohmann Wrote:  It is amazing that they were able to put complex matrix algebra into such a tiny calculator, but by today's standards…

So true about complex matrices in the 15C. Just as an aside, the handheld matrix feature I still find amazing, available as a built-in feature starting with full CAS calculators, is symbolic matrices. While not as common as numerical matrices (by a mile!), they manage to show up in several math, science and engineering contexts.

The reason I find it still remarkable is that, after the countless times we’ve read in comments the cliche “if I want to do serious work, instead of a calculator I turn to Excel or Matlab or Mathematica or…”; Excel doesn’t do symbolic matrices; Matlab doesn’t without the Symbolic Toolbox, losing some of Matlab’s notational simplicity; Mathematica does symbolic matrices, but their availability on easier to use CAS calculators weakens the argument about serious work not being possible on a calculator.